Floyd Mayweather -- Drops $370k On Rare Supercar

Floyd MayweatherDrops $370kOn Rare Supercar

1/30/2015 6:10 AM PT

Floyd Mayweather's gonna need some more garage space -- 'cause the boxer just dropped nearly $400k on an ultra-rare McLaren that was HAND-BUILT in England.

The car is insane -- it's a 2015 McLaren 650S Spider with a retractable hardtop. Top speed -- 204 mph and goes from 0-60 in 2.9 seconds.

Sources close to the boxer tell us ... Floyd ordered the car through his regular exotic car guy Obi Okeke at Fusion Luxury Motors in Van Nuys, Ca -- and had the car delivered to his Vegas home last week.